Which two of these statements correctly identify how Cisco MDS Series switches increase the overall resiliency of SAN extension? (Choose two.)
A.
VSANs and IVR eliminate the potential disruption of a WAN failure.
B.
VSANs and IVR increase reliability by combining control traffic and data traffic over the WAN.
C.
Parallel tunnels and PortChannels prevent any VSAN or IVR in the local fabric from failing.
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D.
PortChannels and VSANs can be used with FCIP to provide enD.to-end redundancy and load balancing.
E.
Recovery at the PortChannel level, instead of at the FSPF routing level, is non-disruptive.